package com.calligraphy.order.service;

import com.calligraphy.order.model.Cart;

import java.util.List;

/**
 * @Author hy
 * @Date 2019/1/23 20:10
 **/
public interface CartService {

    void addCart(Cart cart);

    List<Cart> queryCartList();

    void updateNum(String productId, Integer num);

    void deleteCart(String productId);
}
